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Is 7 a Prime Number?

Is 7 a prime number? How do you know that 7 is prime or composite? Let us first understand what makes a number 'prime'. If a number has only 2 factors (1 and the number itself), then it is a prime number. If the number has more than 2 factors, then it is composite. Now, what do you think of 7? Is 7 a prime number? "Yes, 7 is a prime number." Since 7 has only 2 factors i.e. 1 and 7, it is a prime number. Let's study this in detail.

Is 7 a prime number? - Yes
Is 7 a composite number? - No
Prime Factors of 7 - 7
Is 7 a perfect square? - No
Factors of 7 - 1, 7

Yes, 7 is a prime number. The number 7 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 7 has exactly two factors, i.e. 1 and 7, it is a prime number.

Is 7 a Prime or Composite?

How is 7 a Prime Number?

To understand whether 7 is prime or composite, it is important to find its factors.

Factors of 7: 1, 7

Therefore, we can say that 7 is a prime number since it has only 2 factors.

☛ Prime Number Calculator

Is 7 a Composite Number?

No, since 7 has only two factors, i.e. 1 and 7. In other words, 7 is not a composite number because 7 doesn’t have more than 2 factors.

Problem Statements:

Is 7 a Prime Number?	Yes
Is 7 a Composite Number?	No
Is 7 a Perfect Cube?	No
Is 7 a Perfect Square?	No
Cube Root of 7	1.912930
Multiples of 7	7, 14, 21, 28, 35, 42, 49, 56, 63, 70
Is 7 an Even Number?	No
Square Root of 7	2.645751
Is 7 an Odd Number?	Yes

Fun Facts:

A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (41, 43) are twin prime numbers.
23 is the smallest prime number having consecutive digits.
2 is the smallest prime number.

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